8129945120

Names of 8129945120

• Cardinal: 8129945120 can be written as Eight billion, one hundred twenty-nine million, nine hundred forty-five thousand, one hundred twenty.

Scientific notation

• Scientific notation: 8.12994512 × 10⁹

Factors of 8129945120

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 1404

Divisors of 8129945120

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 4 5 8 10 11 16 20 22 32 40 44 55 59 80 88 110 118 160 176 220 236 295 352 440 472 590 649 880 944 1180 1298 1327 1760 1888 2360 2596 2654 3245 3481 4720 5192 5308 6490 6635 6962 9440 10384 10616 12980 13270 13924 14597 17405 20768 21232 25960 26540 27848 29194 34810 38291 42464 51920 53080 55696 58388 69620 72985 76582 78293 103840 106160 111392 116776 139240 145970 153164 156586 191455 212320 233552 278480 291940 306328 313172 382910 391465 467104 556960 583880 612656 626344 765820 782930 861223 1167760 1225312 1252688 1531640 1565860 1722446 2335520 2505376 3063280 3131720 3444892 4306115 4619287 6126560 6263440 6889784 8612230 9238574 12526880 13779568 17224460 18477148 23096435 27559136 34448920 36954296 46192870 50812157 68897840 73908592 92385740 101624314 137795680 147817184 184771480 203248628 254060785 369542960 406497256 508121570 739085920 812994512 1016243140 1625989024 2032486280 4064972560 8129945120
• Sum of all divisors σ(n): 21330304128
• Sum of proper divisors (its aliquot sum) s(n): 13200359008
• 8129945120 is an abundant number, because the sum of its proper divisors (13200359008) is greater than itself. Its abundance is 5070413888

Bases of 8129945120

• Binary: 111100100100101010001111000100000₂
• Hexadecimal: 0x1E4951E20
• Base-36: 3QGCXSW

Squares and roots of 8129945120

• 8129945120 squared (8129945120²) is 66096007654211814400
• 8129945120 cubed (8129945120³) is 537356914879841987927625728000
• The square root of 8129945120 is 90166.2083044419
• The cube root of 8129945120 is 2010.7706524009

Scales and comparisons

• 8,129,945,120 seconds is equal to 258 years, 26 weeks, 2 days, 14 hours, 5 minutes, 20 seconds.
• To count from 1 to 8,129,945,120 would take you about five hundred seventeen years!

  This is a very rough estimate, based on a speaking rate of half a second every third order of magnitude. If you speak quickly, you could probably say any randomly-chosen number between one and a thousand in around half a second. Very big numbers obviously take longer to say, so we add half a second for every extra x1000. (We do not count involuntary pauses, bathroom breaks or the necessity of sleep in our calculation!)

• A cube with a volume of 8129945120 cubic inches would be around 167.6 feet tall.

Recreational maths with 8129945120

• 8129945120 backwards is 0215499218
• The number of decimal digits it has is: 10
• The sum of 8129945120's digits is 41
• More coming soon!